Sunrise and Sunset times

The red vertical lines running through the center of the plot show
the sunrise and sunset times for that date. The blue line running
across the plot shows the total day length. Note that when the sunset is after
midnight on the day in question, it will be above the 24 hour line. A sudden
jump of the
sunrise and sunset bar is due to the resumption or termination of the
idiotic daylight "savings" time.